High-frequency apparatus.



A. LNGORIA. HmH'fHEouENCY APMRAws. APPLICATION FILED MIR-10,1924.

Patented May 14, 1918.

Er VWRA coperating i relations,

UNITED STATES PATENT OFFICE.

ANTONIO LOHGOBIA, 0F CLEELAND, OHIO, ASSIGNORt TO THE ROGERS ELECTRIC LABORATORIES COMPANY,

or CLEVELAND, omo, A CORPORATION.

HIQHLFBEQUENCY APPARATUS.

Specification c! Letters Patent.

Patented May 14, 1918.

Application Med August 10, 1914. Serial No. 858,008.

To' all 'whom it may com-em.'

Be it known that ANTONIO LoNGonIA, a subject of Spain, residing at Cleveland in the county of Cuyahoga and State of O i0, has invented certain new and useful lmproveme'ntsfin High-Frequency Apparatus,

of whichthe following isa specification.,

This invention relates to improvements in high-frequency apparatus for therapeutical purposes, andthe improvements consist in a handle'constructed to hold a transformer or high-'frequency coil and an electrode in v all substantially as herein shown and described and more particularlyvpointed out. in the claims. 4.

The iobJect of the invention is to provide a small :cylindrical device adapted to beheld in the hand vduring curative treatments, the application of thef-electric current to the by an electrode 'removably in one end of the device in frequency 4coil which is also removably confined within the cylinder in axial alinement with the electrode. According to a common practice; the device is used with a condenser andv a current interrupter in an electrical circuit receiving. its current from ordinary communityservice lines,-and the coil employed isfwolind and electrically connected substantially as shown inthe Letters Patent to G. VD. Rogers, Electric Laboratories Company of Cleveland, Ohio, No. 1,119,119', Decem er 1, 1914.

One form of' condenser `and current inter-- rupter44 adapted to be used with the device is shown in my pending application, Seria Number 856,008, filed concurrently herewith on Au st 10, 1914. i

e accompanying drawings, Figure 1 is a- 4longitudinal section centrally through y `the handle and itsassembled parts, and Fig.

on line 2-2, Fig. 1. Fig. view of the handle show- 2 is a cross section 3 is a perspective ing an electrode in place therein, and Fig. 4v

v isa side view of an electrode having a square contact end for use with'the device. Figs. 5.

-6 and 7 are perspective views of the transl -former,-bushing, and split sleeve, respectively.

Fig'. 8 is a diagrammatic view of the inivention4 electrically connected with a condenser. and .interrupten 1 transformer with an enlar assigner to The Rogers4 The device comprises a tubular handle in the form of a cylindrical body 2 4made of suitable insulating material and having one end 3 reduced m diameter and screwthreaded externally at 4. The opposite end of the body is screw-threaded internally ton: receive a screw plug 5 for the large bore 6, 60 and the central portion of the body has a smaller bore which opens into a still smaller bore 8 within the reduced .end 3. The said differential bores provide a set of shoulders 9 and 10 which seat the fiber or 66 hard-rubber disk-shaped ends 11 and 12 0f -the transformer or high-frequency coil 14 and a metal core 15 is confined within sai d contact head 16 projected outside of t e end disk 12. 70 Bindingposts 17 and 18 are mounted 'upon the larger-end disk 11 and electrically conf nected t'o the primary coil 13 of the transformer 14, and the screw plu 5 has a centra] opening 19 to accomm ate the cable lI5 connections 20 leading to the binding posts. Removal of the screw plug 5 pci-:nits the transformer to be removed bodily Without disconnecting any of the wires, and a sepi; arable electrical connection for the electrode 8f 21 is provided by the contact head 16 and ai` separate spring-clampin sleeve and conduc-r.y

- tor 22 which is removab y confined within n* flanged bushing 23 of fiber or hard rubber. This bushing has a round flaring opening 24 85 terminatin in a square opening 25 and the clamping s eeve 22 has a tapered Split bod 26 terminatingin a square oper. end 27. springA lip 28 onsaid extension is bent'inwardly toward the axis to make contact with the core head 16 when the sleeve and bushing are both in place vwithin the reduced end 3 of body 2 and especially when locked therein against rotation by the annular internal shoulder 29 of -the Vrelatively lon tapered 95 hose and projecting holder 30 whic is screwengaged with the screw-threaded reduced end 3.. The electrode 21 is made usually of glass with a roundstem which is provided with a metal ca for electrical contact purposes, and the sp it sleeve 22 will frictionally engage either a round cap, or a round cap 31 having a square end 32 as shown in Fig.

4. The latter form of electrode is my own conception and preferred and the sleeve 22 105 is constructed as described to grip the elec` trode and hold it in place with good electrical contact between the parts and to co-act with the square end 32 to prevent the electrode from turning in the handle while in 5 use. A straight edge 33 on the screw plug 5 prevents the handle from rolling or turning when laid down on its side.

The detachable nose or holder 30 and the removable sleeve 22 and bushing 23 pernnt convenient assembling and replacement of the parts without removing or disturbing the transformer in body 2, and the contacts can also be easily examined and kept in good condition.

This apparatus is used for therapeutical purposes by direct application to the body, externally or internally, and the casing or body 2 necessarily is of insulating material so that the user or holder of the instrument as it is grasped in the hand will not feel the shock of the high frequency current. The function, of course, is to apply the current to the body through the electrode, which transmits what may be regarded as the violet rays, and different electrodes are employed according to the treatment wanted.

The object of having metallic contact between the core and the electrode is the more effective transmission of the current and to avoid possible leakage which might creep out to the hand.

The primary and secondary windings of the transformer 14 are electrically connected as shown in the Letters Patent N o. 1,119,119 liereinbefore referred to, tht is, the trminals of the primary coil are connected to binding posts and the terminals of the sec- .ondary coil are connected to the metal core and one of the binding posts of the trans former.

In Fig. 8, I show one way of electrically connecting the device in a circuit containing an interrupter 1 and condenser C, but the invention is not limited to this mode of electrically connecting the parts.

What I claim is:

1. In a high''requency apparatus, a tubular fhandle, a transformer having. an end contact and a bushing removabl seated opposite thereto within said han le, trode gripping sleeve removably 'seated within said bushing in contact relations with said end contact, and a nose portion for said handle to hold said bushing and sleeve in `place, said nose portion of the handle having a central opening opposite the sleeve to receive an electrode.

2. In :thigh-frequency apparatus, a tubu lar handle, a transformer and an electrode gripping device confined within said -handle in electrically connected relations, said device having locking means to prevent rotation of an electrode when inserted within said handle. 65 3. In a high-frequency apparatus, the

an elec-` combination of an electrode having an an gular end, with a tubular handle, a transformerl a gripping sleeve for said electrode confined within said handle, and angular portions on said sleeve to engage the angu- 'It lar nd of said electrode to prevent the turning of the electrode within said handle.

4. In a highfrequency apparatus, an electrode having a stem provided with a metal cap with a flat side, in combination with a handle having a split metal sleeve provided with a fiat-sided socket portion to receive said metal cap.

5. In a. high-frequency apparatus, a tu bular body having a removable bushing provided with a square opening, and a spring metal clamping sleeve having a square extremity removably seated in said square opening.

G. In a highfrequency apparatus7 a tubular body, and an electrode clamping sleeve removably seated within one end of said body having a spring contact lip, in combination with a transformer removably seated within the opposite end of said body having an electrical contact engaged with said lip.

7. In a. high-frequency apparatus, a handle comprising a tubular body and a highfrequency transformer confined therein having a core connected with its secondary coil, and an electrode-clamping sleeve removabl seated within the center of said body in adsi Vance of and in permanent contact with said transformer core.

8. In a high-frequency apparatus, a handle member having a longitudinal bore, a transformer having a core connected with its secondary coil and a combined clamping sleeve and conductor for an electrode re- 105 movably seated in said bore and in contact with said core.

9. In a high-frequency apparatus, a handle vhaving a central bore, a transformer therein having a core connected with its secondary coil and a bushing removably seated within said bore in advance of said transformer and an electrode holding sleeve mounted within said bushing having spring contact with said core.

10. In a high-frequency apparatus, a tubular handle, a trhnsformer having a central core connected with its secondary coil, and a. split metal sleeve mounted in conducting relation with said core in said handle, a bushing about said sleeve and a holder on the end of said handle to removabl secure said parts in place within the han le.

11. In a high-frequency apparatus, a tubular handle, a transformer having a cen 125 tral core connected with its secondary coil and a clamping conducting sleeve member in contact with said core, and a removable holder en the end of said handle to maintain said transformer and sleeve in electrical engagement, in combination with an electr e having a stem projected into said sleeve.

12. In a high-frequency apparatus, a han- 5 die havinga-di'erential bore, a transformer having a core connected with its secondary coil and a combined electrode gripping sleeve and current conductor removably confined within said bore, in contact with said core and a removably secured nose ortion on said handle having a central bore 1n axial alinement with and open to said gripping sleeve. f

13. In a, high-frequency apparatus, a tubular handle having a nose portion provided with an axial bore adapted to receive an electrode, a. spring clamping sleeve seated at the inner end structed to grip and hold said electrode and 2o having a spring lip, and a transformer removably conned within said handle having a core connected with its secondary coil and in contact with said spring lip. 14. In a hi h-frequency apparatus, a tu- -bular handle tion provided with an axial bore, a nonconducting bushin and a. split metal sleeve therein removabliy eld in place by said nose` portion, a trans ormer removably confined within said handle having an end conductingcontact with the opposite end nose portion to within the handle.

In testimon in presence o two witnesses.

ANTONIO LONGORIA.

of said handle from said avlng a removable nose por-- and means at,

whereof I affix my signature confine said transformer 

